*If there is only one of the first element skip the prefix mono and change the second elements ending to "ide".* Examples:
H2O=dihydrogen monoxide
P4O10=tetraphosphorus decoxide
NAMING MONOVALENT IONIC COMPOUNDS
Monovalent→metal can only have one charge
Ionic→has a metal
1.) Say the name of the cation(metal)
2.)Say the name of the anion
If a single element, change endingto "-ide"
Variations of polyatomic Ions
→change in only the number of oxygens
SO4=Sulfate(original)
SO3=Sulfite(subtract one)
SO2=Hyposulfite(subtract two)
SO5=Perculfate(add one)
1.) Name the Cation Ferrum=Iron(2+, 3+) Cuprum=Copper(1+, 2+) Stannum=Tin(2+, 4+) Plumbum=Lead(2+, 4+) Mercury=Mercury (1+, 2+)
*Latin name indicating the lower charge*
*Charge also indicated by roman numerals*
2.)Name the Anion
-If the cation has the greater of the two possible charges it gets an "-ic" ending
-If the cation has the lesser of the two charges it get and "-ous" ending
Chapter 7- Chemical Formulas and Chemical Compounds
Key Points
NAMING COVALENT COMPOUNDS → contains no metals
Using a system of prefixes
1→Mono
2→Di
3→Tri
4→Tetra
5→Penta
6→Hexa
7→Hepta
8→Octa
9→Nona
10→Deca
*If there is only one of the first element skip the prefix mono and change the second elements ending to "ide".*
Examples:
H2O=dihydrogen monoxide
P4O10=tetraphosphorus decoxide
NAMING MONOVALENT IONIC COMPOUNDS
Monovalent→metal can only have one charge
Ionic→has a metal
1.) Say the name of the cation(metal)
2.)Say the name of the anion
If a single element, change endingto "-ide"
Examples:
lithium oxide=Li2O
Calcium Chloride=CaCl2
NAMING OF TERNARY IONIC COMPOUNDS
Ternary→ three or more elemonts
Ionic→a metal is present
1.)Name Cation(metal)
2.)Name anion(usually Polyatomic Ion)
Variations of polyatomic Ions
→change in only the number of oxygens
SO4=Sulfate(original)
SO3=Sulfite(subtract one)
SO2=Hyposulfite(subtract two)
SO5=Perculfate(add one)
Examples:
Na2SO4= Sodium Sulfate
CaCo3= Calcium Carbonate
NAMING BIVALENT IONIC COMPOUNDS
1.) Name the Cation
Ferrum=Iron(2+, 3+)
Cuprum=Copper(1+, 2+)
Stannum=Tin(2+, 4+)
Plumbum=Lead(2+, 4+)
Mercury=Mercury (1+, 2+)
*Latin name indicating the lower charge*
*Charge also indicated by roman numerals*
2.)Name the Anion
-If the cation has the greater of the two possible charges it gets an "-ic" ending
-If the cation has the lesser of the two charges it get and "-ous" ending
Examples:
FeCl2=Iron(II) Chloride
FeSO4=Iron(II) Sulfate
NAMING ACIDS
Acids→always begin with "H" AND can be dissolved in H2O
→acid indicator is aqueous(aq)
Two Types
Binary Acid (HAaq)
1.) Say "Hydro"
2.)Say the anion with "-ic" ending
3.)Say "acid"
Example:
HBr(aq)=Hydrobromic acid
Ternary Acids(three elements)__
1.)Say the anion with an "-ic" ending
2.)Say Acid
Example:
H2SO4(aq)=Sulfuric Acid
PRACTICE PROBLEM
Oxygen Diflouride=
N2O3=
Potassium Sulfate=
SO3=
Tetraphosphorus Octaoxide=
LiS=
Sodium Phosphide=
MgCl2=
Magnesium Chlorate=
K2SO4=
Calcium Nitrate=
HgCo3=
Copper(I) Fluoride=
SnO=
Mercury(I) Chloride=
Na2SO3=
Calcium Hypochlorite=
Plumbic Iodide=
HCl(aq)=
Hydrofluoric Acid=
H2Co3(aq)=
Phosporic Acid=